Kewaskum, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kewaskum, a village in Washington County, Wisconsin.
Today
82°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 3pm and 4pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 82. South wind 0 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Kewaskum
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph S | 24% |
| Tonight | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph W | 80% |
| Wednesday | 76°F | Patchy Fog | 0 to 5 mph W | 52% |
| Wednesday Night | 58°F | Slight Chance Showers And Thunderstorms | 0 mph | 23% |
| Thursday | 79°F | Mostly Sunny | 0 mph | 8% |
| Thursday Night | 58°F | Mostly Clear | 0 mph | 7% |
| Friday | 82°F | Sunny | 0 to 5 mph SW | 2% |
| Friday Night | 62°F | Mostly Clear | 5 mph SW | 7% |
| Saturday | 84°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Saturday Night | 66°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 30% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 30% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 5 mph SW | 51% |
| Monday | 82°F | Chance Rain Showers | 0 to 5 mph SW | 38% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 5 mph N | 43% |
Forecast source: National Weather Service (api.weather.gov) for Kewaskum (43.518, -88.231). Updated through the day.
Growing snapshot for Kewaskum
Last spring frost
May 1
First fall frost
Oct 12
Growing season
161 days
Hardiness zone
5b
More local growing data for Kewaskum: nearby ZIP 53040 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, W Bend Public Works, Wi (8 mi from Kewaskum). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.